Natural Gas Boiler CEMS

A. Gaseous Pollutant Analyzer (SUV-100)

• Measurement Principle: UV differential absorption (DOAS) for NO; electrochemistry for O₂
• Measuring Range: (0～2000) mg/m³ for NO; 0～25 vol% for O₂
• Zero Drift: ≤±2% F.S.
• Span Drift: ≤±2% F.S.
• Indication Error: ≤±2% F.S.
• Detection Limit: ≤0.5% F.S.
• Response Time (T90): ≤75 s

B. Temperature, Pressure and Flow Monitor (SVPT-100)

• Temperature Measurement Range: (0～300)℃, optional (0～500)℃
• Accuracy: ≤±3℃
• Pressure Measurement Range: ±5 kPa, optional (±2 kPa, ±10 kPa)
• Flow Rate Measurement Range: (0～30) m/s, optional (0～15) m/s, (0～40) m/s
• Accuracy: Relative error ≤±10% when flow rate ＞10 m/s; relative error ≤±12% when flow rate ≤10 m/s

C. Humidity Analyzer (Model SSD-100)

• Measurement Range: (0～40) vol%
• Accuracy: Absolute error ≤±1.5% when humidity ≤5%; relative error ≤±25% when humidity ＞5%

1. All instruments of the complete system are self-developed, featuring a standardized and modular design for simple and reliable composition.
2. Based on UV differential absorption spectroscopy (DOAS) technology, the innovative multi-parameter joint estimation and interference cancellation algorithm achieves extremely low zero drift and span drift over a wide temperature range, with the minimum detection limit of NO as low as 0.05 mg/m³.
3. Adopting PLC control with a high level of automation, the liquid crystal screen displays the system flow path and collects detailed status information of the system, which can serve as the most favorable resource for data validity verification.